Finding the Third Proportional to 1,369,839 and 2,181,606

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369,839 : 2,181,606 = 2,181,606 : x
2. Step 2: Convert to fraction form
   1,369,839/2,181,606 = 2,181,606/x
3. Step 3: Cross multiply
   1,369,839x = 2,181,606 × 2,181,606
4. Step 4: Simplify right side
   1,369,839x = 4,759,404,739,236
5. Step 5: Solve for x
   x = 4,759,404,739,236/1,369,839
6. Step 6: Final answer
   x = 3,474,426.37